Adjustable Electrical Box for Brick Wall Mounting
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Solution Overview
Problem
Conventional electrical boxes are not suitable for brick or stone walls of varying thicknesses, as they require mortar for installation, which is unsightly and time-consuming, and often do not extend far enough to be flush with the wall surface.
Innovation Solution
An adjustable electrical box assembly comprising a flange member with a telescopically receiving collar and a faceplate, allowing the electrical box to be securely mounted flush with the wall surface regardless of thickness, eliminating the need for mortar and providing an aesthetically pleasing installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional electrical box with fixed-length sidewalls is used, then the installation process is simple, but the electrical box cannot accommodate brick or stone walls of varying thicknesses and may not extend far enough to be flush with the wall surface
Solution Approach 1:
The electrical box is divided into two separate components: a flange member that remains fixed on the wall surface and an electrical box portion with sidewalls that can be adjusted in length. This segmentation allows the sidewalls to be customized for different wall thicknesses while keeping the mounting structure standardized.
Solution Approach 2:
The sidewalls are designed to be adjustable rather than fixed, allowing installers to modify the length of the sidewalls to match the specific thickness of the brick or stone wall being installed on. This dynamic adjustment capability provides versatility across different wall configurations.
2Adaptability or versatility
If the electrical box sidewalls are extended to reach through thicker brick or stone, then flush mounting is achieved, but the sidewalls become too long for thinner walls creating an unsightly appearance
Solution Approach 1:
By separating the mounting function (flange member) from the electrical box function (box portion), the design allows the box portion to be precisely sized for each installation, ensuring it extends exactly to the wall surface without protruding or falling short, thus maintaining aesthetic appearance.
Solution Approach 2:
The length parameter of the sidewalls is made variable to match the specific thickness of the wall being installed on, ensuring optimal aesthetic appearance and functional performance for each unique installation scenario.
3Adaptability or versatility
If mortar is used to secure the electrical box to the brick or stone wall, then installation is possible, but the installation becomes time-consuming and creates an unsightly area of mortar around the electrical box
Solution Approach 1:
The need for mortar is completely removed from the installation process. The flange member with its collar and fastening arrangement provides a mechanical mounting system that secures the electrical box directly to the wall without requiring any mortar or adhesive materials.
Solution Approach 2:
The flange member acts as an intermediary mounting component between the substrate and the electrical box, providing a standardized interface that eliminates the need for mortar while ensuring secure attachment to brick or stone walls.
4Adaptability or versatility
If mortar is used to secure the electrical box, then mounting is achieved, but the installation process becomes more complex and less aesthetically pleasing
Solution Approach 1:
The installation process is simplified by removing the mortar step entirely. The electrical box assembly is designed to be mounted directly to the substrate using the flange member's built-in fastening system, eliminating the need for additional materials and steps.
Solution Approach 2:
The flange member includes integrated fastening arrangements that enable the electrical box to be self-mounted to the substrate without requiring external mortar or adhesive applications, simplifying the installation process.
Data Source
AI summary
An adjustable electrical box assembly for providing electrical service on a brick or stone wall. The assembly includes a flange member, box member, and a faceplate. The flange member includes a flange and a forward extending collar. The electrical box includes sidewalls that are telescopically received in the collar of the flange member and a fastening arrangement for securing the electrical box to the flange member. After installing an electrical fixture within the electrical box, a faceplate is secured to the front of the box member.